Door-bell



(No Mo del.)

H. J. P. WHIPPLE.

DOOR BELL.

No. 349,552. V Patented Sept; 21, 1886M lllll-llllllll GinUvH N. PETERS. Phniwlilhognyher, Waslflngtcn. D. C.

UNITED STATES PATENT ()FFICE.

HENRY J. P. \VHIPPLE, OF CLEVELAND, OHIO.

DOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 349,552, dated September 21, 1886.

Application filed January 1S, 1886. Serial No. 188,897. (No model.)

To all whom, it may concern:

Be it known that I, HENRYJ. P. W'HIPPLE, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new Improvementin Door-Bells; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, a plan view with the bell removed; Fig. 2, a section cutting on line 90a: of Fig. 1.

This invention relates to an improvement in that class of bells which are adapted to be applied to a house-door or otherplaces where it is desirable to sound a call or alarm, and particularly to that class in which the bell is a gong having a mechanism within it of a leverlike character, whereby the hammer hung within the gong is turned upon its pivot and left free, so that under the action of a spring it will impart a blow to the gong, the object of the invention being to adapt the mechanism of a gong to a push device-that is to say, so that the end of a spindle presented for the action of the thumb, and pressed upon by the thumb, will be forced inward, and in its longitudinal movement impart active movement to the mechanism of the bell; and it consists in the construction hereinafter described, and more particularly recited in the claims.

A represents the base of the bell, adapted to be secured to the door, wall, or wherever it may be-say, as by screws a. The base is of the usual disk-like shape. At its center the post B is arranged, upon which the hell O is secured in the usual manner.

D is one arm of a lever hung upon a pivot, b, so as to swing in a plane parallel with the base, terminating in a hammer, E, adapted to strike the bell, the other arm, F, extends inward and is arranged to receive movement under the action of the mechanism. A bellerank lever consisting of two arms, G H, is hung upon a pivot, (I, so as to swing in a plane parallelwith the base. A two-armed spring, I J, is arranged upon a post, 6, the one arm J extending to and bearing upon the hammerlever, the other arm extending to and bearing upon the arm G of the other lever, the tendency of the spring being to force the hammerlever toward the-bell at that side, and the other arm, I, to force the arm G of the other lever in the opposite direction. A stop, f, is provided to limit the action of the armJ upon the hammer, so that such act-ion will cease before the hammer reaches the bell. In the base a lever, L, is hung upon a pivot, h, on the reverse side of the base, the axis of the pivot being parallel with the plane of the base. This'lever forms a dog through which the acting lever G H is turned. The nose 1' of the dog bears against the back of the arm H of the acting. lever, and on the opposite side of the dog is a projection, m, against which a spindle, M, arranged in the door may bear, as seen in Fig. 2. The spindle M terminates in a head, N, on the reverse side of the door, against which the thumb may be applied, so as to impart longitudinal movement to the spindle. Around the head of the spindle is a recessed rose, I, such as usually employed tosurround a push of this character. When the spindle is pushed inward, as indicated in broken lines, Fig. 2, the dog is turned toward the arm H, as indicated in broken lines, Fig. 2, which movement of the dog imparts a corresponding movement to the lever G H, as indicated in broken lines, Fig. 1; but when the spindle is free the arm I of the spring forces the lever and dog to return and throw the spindle outward to its normal position, as seen in Fig. 2. 011 the arm H a longitudinal slide, R, is ararranged in suitable guides, so that a reciprocating movement may be imparted to the said slide. A V- shaped spring, S, is arranged upon the lever G H, the tendency of which is to force the slide R from the fulcrum of the lever, but which yields to the movement of the slide in the opposite direction. The nose n of the slide R is in the same plane with and bears against the inside of the arm F of the hammer-lever, so

that as the lever G H is turned, as before described, the slide will impart to the hammer a corresponding movement, as indicated in broken lines, Fig. 1. From the slide is a lateral projection, 1", inclined to the hammer-lever, and on the plate or base is a stud, t,which' stands in the path of the inclined side of the said projection 0' as 'the lever G H is turned, and as the lever and slide are so turned the inclined projection 4' acts as a cam againstthe stud t and imparts to the slide a retreating movement toward the fulcrum of lever G H sufficient to permit the nose at to escape from the arm F of the hammer-lever when the hammer has been sufficiently turned to impart the blow, as indicated in broken lines, Fig. 1,and as the lever G H is thus turned the hammer is correspondingly turned from the bell, and when the slide is retracted so far as to permit the escape of the hammer, then the hammer is thrown by the action of its spring with force suffieient to impart the requisite blow to the bell. The arrest of the action of the spring upon the hammer-lever just before the hammer reaches the bell permits the blow to be imparted under the momentum of the hammer, so that the hammer may retreat the instant it imparts its blow, and therebynot interfere with the vibration of the bell.

To force the rebound of the hammer, I provide an auxiliary spring, T, which bears upon the hammer-lever in opposition to the spring J, but is very much lighter in its power, sufficient to produce the required rebound of the hammer, but not so strong as to materially interfere with the movement of the hammer under the momentum imparted to it by the spring J. After the hammer has escaped, as before described, the lever G H is permitted to return. The roundedback of theslidepermits it to pass the end of the hammer until it reaches its normal position, then the spring S forces the slide forward to engage the arm F of the hammer, as shown in Fig. 1. Under this construction the bell is adapted to be actuated by a push-spindle, and while specially designed for door-bells, may be employed wherever a gong-signal is desirable.

I claim- 7 1. The combination of the base A, the bell 0, arranged thereon, the hammer-lever hung to the base and so as to swing in a plane parallel therewith, the hammer-lever constructed with an arm, F, projecting therefrom, the bellcrank lever G H,also hung to said base, so as to swing in a plane paralleltherewitln'the slide It, arranged in guides on the arm H, so as to be moved longitudinally toward and from the hub of the said lever, the said slide constructed with its nose n adapted to engage the arm F of the hammer-lever, and with a laterallyinelined projection, a", a bearing, 1', on the base, against which said inclined projection is arranged to bear, substantially as described, whereby under the swinging movement imparted to said lever G H a corresponding swinging movement will be imparted to said slide, and at the same time, through the coaetion of the projection 0' and the bearing 1 ,a retreating movement will be imparted to said slide.

2. The combination of the base A, the bell 0, arranged thereon, the hammer-lever hung to the base, so as to swing in a plane parallel therewith, the hammer-lever constructed with an arm, F, projecting therefrom, the bell-crank lever G H, also hung to said base, so as to swing in a plane parallel therewith, the slide R, arranged in guides on the arm H, so as to. be moved longitudinally toward and from the hub of the said lever, the said slide constructed with its nose at adapted to engage the arm F of the hammer-lever, and with a laterally-inclined projection, r, a hearing, if, on the base, against which said inclined projection is arranged to bear, the (log L, hung in said base upon a pivot parallel with the plane of said base, its nose '5 arranged to bear against the said arm H, and with a projection, m, on its back, the push-spindle M, arranged to work against said projection on on the dog, and springs arranged to return the said parts to and yieldingly hold them in their normal po sition, substantially as described.

HENRY J. 1?. XVHIPPLE.

\Vitnesses: J OI-IN F. EARLE, FRED O. EARLE. 

